Screenshot speichern

[Shining Advances]

also google hat mir folgendes script rausgespuckt.
es speichert aber nicht in png/jpg sondern bmp.

Code:

#=============================================================================
# *** Aleworks Bitmap(ABMP)
#=============================================================================
# Created by Aleworks(vgvgf)
# Version: 1.00
# Last Modification: 21/04/2007 (day/month/year)
#=============================================================================
#==== Description ====
# This script allows to save a bitmap file(bmp) from the RGSS Bitmap class image.
#=============================================================================
#=============================================================================
#==== Classes & Methods ====
# * Module ABMP
#   - Methods
#     - ABMP.save(bmp, filename[, background_color[, prevent_hang_up]])
#       Saves the 'bmp' image to the filename file. Filename needn't have
#       the .bmp extension. If background_color is a Color class, then the saved
#       bitmap will have the given color. If it's not given will be nil.
#       If prevent_hang_up is true, the script will call Graphics.update each
#       6 seconds aproximately for preventing the game to close by hang up. If
#       it is not given, it will be true. You can add a block to the method, that
#       will return the completed porcentage of the proccess.
#       Note: bitmap images don't support transparency, so all colors that
#       have transparency will be writed with full opacity. Also, this is a very
#       time consuming method so avoid using it constantly.
#     - check_hang_up
#       Called internaly for checking if the Graphics need to be updated.
#=============================================================================

#=============================================================================
# ** Module ABMP
#=============================================================================
module ABMP
  #---------------------------------------------------------------------------
  # * ABMP.save
  #---------------------------------------------------------------------------
  def self.save(bmp, filename, background_color = nil, prevent_hang_up = true)
    if File.extname(filename) != '.bmp'
      filename += '.bmp'
    end
    if !background_color.nil?
      temp_bmp = bmp.clone
      rect = Rect.new(0, 0, temp_bmp.width, temp_bmp.height)
      bmp = Bitmap.new(temp_bmp.width, temp_bmp.height)
      bmp.fill_rect(rect, background_color)
      bmp.stretch_blt(rect, temp_bmp, rect)
      temp_bmp.dispose
      Graphics.update if prevent_hang_up
    end
    file = File.open(filename, 'wb')
    file.write('BM')
    file.write([54 + (bmp.width * bmp.height * 24) / 8].pack('L'))
    file.write('ABMP')
    file.write([54].pack('L'))
    file.write([40].pack('L'))
    file.write([bmp.width].pack('L'))
    file.write([bmp.height].pack('L'))
    file.write([1].pack('L')[0, 2])
    file.write([24].pack('L')[0, 2])
    file.write([0, 0, 0, 0, 0, 0].pack('L6'))
    null_spaces = 0
    if bmp.width / 4 != bmp.width / 4.0
      if (bmp.width + 1) / 4 == (bmp.width + 1) / 4.0
        null_spaces = 1
      elsif (bmp.width + 2) / 4 == (bmp.width + 2) / 4.0
        null_spaces = 2
      elsif (bmp.width + 3) / 4 == (bmp.width + 3) / 4.0
        null_spaces = 3
      end
    end
    time = Time.now
    last_porcentage = -1
    for y in (-bmp.height + 1)..0
      line = ''
      for x in 0...bmp.width
        color = bmp.get_pixel(x, y.abs)
        line += [color.blue.to_i].pack('L')[0, 1]
        line += [color.green.to_i].pack('L')[0, 1]
        line += [color.red.to_i].pack('L')[0, 1]
        time = self.check_hang_up(time) if prevent_hang_up
        if block_given?
          porcentage = (((y + bmp.height) * bmp.width + x)) * 100
          porcentage /= bmp.height * bmp.width
          if porcentage > last_porcentage
            yield porcentage
            last_porcentage = porcentage
          end
        end
      end
      file.write(line)
      time = self.check_hang_up(time) if prevent_hang_up
    end
    file.close
  end
  #---------------------------------------------------------------------------
  # * check_hang_up
  #---------------------------------------------------------------------------
  module_function
  def check_hang_up(time)
    if time.sec <= Time.now.sec - 6 or time.min != Time.now.min
      Graphics.update
      return Time.now
    end
    return time
  end
end

credits gehen an vgvgf (steht ja auch im script)